All MIBs › CPQNIC-MIB › cpqNicIfPhysAdapterDeferredTransmissions
cpqNicIfPhysAdapterDeferredTransmissions
Module: CPQNIC-MIB
OID (symbolic): CPQNIC-MIB::cpqNicIfPhysAdapterDeferredTransmissions
OID (numeric): 1.3.6.1.4.1.232.18.2.3.1.1.24
Node type: OBJECT-TYPE
Type: Counter
Access: read-only
Description: The number of packets deferred before transmission: This counter contains the number of packets whose transmission was delayed on its first attempt because the medium was busy. Packets involved in any collisions are not counted. Frames that wait before transmission are counted. This statistic will be incremented often during normal operation on a busy network.
Deferred transmissions occur when the network is extremely busy; so busy that the NIC did not try to transmit. High counts of multiple collisions and excessive collisions also occur.
Deferred transmissions indicate that this segment of the LAN is overcrowded. Reduce the traffic by reorganizing the LAN. For example, if you have 100 stations on one Ethernet bus, break it into two Ethernet segments by adding a NIC to your server. In this way you can balance the load by putting 50 stations on one segment and 50 on the other. If a few isolated stations create the traffic, put them on a separate segment.
What is cpqNicIfPhysAdapterDeferredTransmissions?
This read-only counter tallies packets whose transmission was delayed on the first attempt because the medium was busy, explicitly excluding packets that were also involved in any collision. An admin uses this to gauge how often this adapter has to wait for a clear channel before it can even start sending, a sign of contention on a shared half-duplex segment. For example, a high deferred count with a low collision count suggests the segment is busy but the adapter is politely waiting its turn rather than colliding.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.232.18.2.3.1.1.24 snmpwalk -v2c -c public <target> CPQNIC-MIB::cpqNicIfPhysAdapterDeferredTransmissions
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.232.18.2.3.1.1.24.1 snmpget -v2c -c public <target> CPQNIC-MIB::cpqNicIfPhysAdapterDeferredTransmissions.1
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OID Breakdown
Upper-level ancestors (7 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.232 | compaq | COMPAQ-ID-REC-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.232.18 | cpqNic | CPQNIC-MIB |
| 1.3.6.1.4.1.232.18.2 | cpqNicComponent | CPQNIC-MIB |
| 1.3.6.1.4.1.232.18.2.3 | cpqNicIfPhysAdapter | CPQNIC-MIB |
| 1.3.6.1.4.1.232.18.2.3.1 | cpqNicIfPhysAdapterTable | CPQNIC-MIB |
| 1.3.6.1.4.1.232.18.2.3.1.1 | cpqNicIfPhysAdapterEntry | CPQNIC-MIB |
| 1.3.6.1.4.1.232.18.2.3.1.1.24 | cpqNicIfPhysAdapterDeferredTransmissions | CPQNIC-MIB |